package service.array;

import cn.edu.zsc.rbac.domain.dto.RoleDto;
import cn.edu.zsc.rbac.domain.entity.Role;
import cn.edu.zsc.rbac.domain.vo.Result;
import cn.edu.zsc.rbac.domain.vo.RoleVo;
import service.IRoleService;
import service.IUserService;


/**
 * 业务层-部门
 *
 * @author 周志豪
 * @since 2025/4/17 19:19
 */
public class RoleService extends BaseService<Role,RoleDto,RoleVo> implements IRoleService {

    private IUserService userService;

    private static  IRoleService singleton;

    private RoleService(){
        data = new Role[DATA_SIZE+1];
        temp = new RoleVo[DATA_SIZE];
    }

    public static IRoleService getInstance() {
        if (singleton == null) {
            singleton = new RoleService();
        }
        return singleton;
    }
    @Override
    RoleVo convertToVo(Role role){
        return new RoleVo(role.getId(), role.name, role.dataScope);
    }
    @Override
    Role createEntity(RoleDto dto,int id){
        return new Role(id,dto.name,dto.dataScope);
    }
    @Override
    void updateEntity(RoleDto dto, Role role){
        role.name = dto.name;
        role.dataScope = dto.dataScope;
    }

    @Override
    public  Result delete(int id){
        if(existsById(id)){
            return Result.failure("删除失败,不存在该数据");
        }
        if(userService == null){
            userService = UserService.getInstance();
        }
        if(userService.roleInUse(id)){
            return Result.failure("删除失败，还有用户具有该角色，不能删除");
        }
        data[id] = null;
        return Result.success("删除成功",null);
    }
}
